ipv4: Pass flow key down into ip_append_*().

This way rt->rt_dst accesses are unnecessary.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 6fee91f..11e17804 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -595,7 +595,7 @@
 		if (!ipc.addr)
 			ipc.addr = fl4.daddr;
 		lock_sock(sk);
-		err = ip_append_data(sk, ip_generic_getfrag,
+		err = ip_append_data(sk, &fl4, ip_generic_getfrag,
 				     msg->msg_iov, len, 0,
 				     &ipc, &rt, msg->msg_flags);
 		if (err)